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Question 1187917: 7(a+b)=b-a
4(3a+2b)=b-8
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! 7(a+b)=b-a
4(3a+2b)=b-8
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If you want to solve for a & b, you should say that.
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7(a+b)=b-a --> 7a + 7b = b - a ---> 8a = -6b ---> a = -3b/4
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4(3a+2b)=b-8 --> 12a + 8b = b-8
Sub for a
12*(-3b/4) + 8b = b-8
You can do the rest
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